Doping effect by SiO2 on optical properties of ZnO Thin Films Prepared by pulsed laser depositions (PLD) technique

Abstract

In this paper,Zinc oxide was dopped by various concentrations (5,10,15,20,25) % wt, silicon oxide The mixture was deposited on glass substrate by laser pulse deposition at room temperature to obtain (Zn2SiO4) thin films .The optical properties of thin films prepared on spectral absorption and transmission recording were studied at the wavelength range (200- 1100) nm. Some of the optical constants, including absorptance, transmission, absorption coefficient, and energy gap are calculated before and after annealing at (400 ̊C) for (1 hr). Absorptance values and absorption coefficient increase after doping and transmission and energy gap decreases after the doping. Absorbance values and absorption coefficient decreases after annealing and transmission and energy gap increase after the annealing .
 
 http://dx.doi.org/10.25130/tjps.24.2019.015

The Effect of Laser Energy on the Structural, Optical and Electrical Properties of CdO Nanomaterials Generated Using (PLD) Technology, and Fabrication a Gas Sensor

“…It has high reflectivity at the red region of the electromagnetic spectrum [10], high carrier mobility [11], and high electrical conductivity similar to negative-type metals (n-type) [4,9], as well as good fluorescence and many applications in electro-optical devices and display devices [12]. CdO is a cadmium compound that is soluble in acids and ammonia salts but not water or alkalis [13]. Pulsed Laser Deposition (PLD) technology is considered one of the best technologies used in this field, because it gives the largest number of thin films in record time, by controlling the number of pulses and laser energy.…”

“…Pulsed Laser Deposition (PLD) technology is considered one of the best technologies used in this field, because it gives the largest number of thin films in record time, by controlling the number of pulses and laser energy. Cadmium oxide has distinctive properties that enable it to be used in many different scientific applications and technological [11,13]. The aim of this research is to make a gas sensor (NH3)…”